Neutral-cure siliconeSealant
KF-SL100 Neutral Silicone Sealant
KF-SL100 neutral silicone sealant is a one-component room temperature vulcanizing (RTV-1) system based on polydimethylsiloxane with dealcoholization cure. After curing, it forms an elastic sealing layer from -50 to 150°C. Weather resistance >30 years. Widely used for weatherproof and waterproof sealing of building curtain walls/aluminum alloy doors and windows/stone joints/glass assembly.
ProductsOverview
Neutral silicone sealant is a high-performance professional coating product developed and produced by KeXin New Material. It is scientifically formulated with premium resins and imported pigments and fillers, offering excellent adhesion, durability, and application performance. It is widely used in industrial manufacturing, architectural decoration, automotive and transportation, and other fields.
As a source coating factory, KeXin New Material strictly implements the ISO9001 quality management system for neutral silicone sealant from formula design and raw material procurement to production and filling. The product has passed ROHS, REACH, and other environmental regulation certifications. Free sample testing and on-site guidance by technical engineers are provided.
Why choose a neutral-cure silicone sealant?
CoreAdvantages
>30 Years Outdoor Ultra-Weatherability
The Si-O-Si bond energy of the silicone backbone is 452kJ/mol, far higher than the maximum energy of ultraviolet light (411kJ/mol). Molecular-level resistance to UV degradation gives silicone sealant an outdoor weathering life of >30 years. Building curtain walls and window seals require no replacement within their design life.
Neutral Dealcoholization Curing · Non-Corrosive
The alkoxy-type neutral curing releases ethanol small molecules. It is non-corrosive to metal/glass/stone/plastic (unlike the deacidification type). Odorless, environmentally friendly, and safe. Suitable for mirror glass, coated glass, metal curtain walls, and other sensitive substrates.
High-elastic movement accommodation
Silicone sealant has an elongation at break of >300%, which can compensate for ±25% joint displacement between curtain wall panels. The elastic recovery rate is >95%, with no permanent deformation after repeated stretching. Safe displacement compensation for building curtain walls under earthquake and wind loads.
Professional coating technology support services
Kexin has an experienced coatings R&D and applications team that supports the whole process - substrate analysis, coating selection, optimisation of process parameters and on-site application guidance. Our engineers commission the coating parameters on your own production line so that finish quality and output are both optimised.
Eco-compliant green manufacturing system
All products are RoHS/REACH compliant and their VOC content meets national environmental standards. Waterborne and high-solids low-VOC formulations are continuously refined to keep pace with ever stricter environmental requirements. Environmental performance test reports issued by third-party authorities such as SGS and CTI are available on request.
Complete quality control and batch traceability
A quality-control system covering the whole process, from incoming raw materials to finished-goods dispatch. Every batch undergoes rigorous physico-chemical testing and simulated application trials. Batch numbers are traceable end to end, so raw-material sources and production data can be retrieved. Each shipment is released with a batch test report and a product warranty, so customers can use it with confidence.
TechnicalSpecifications
Basic parameters
Performance
The technical parameters above are taken from test data of the Kexin New Materials laboratory (ISO 17025 accredited); actual values may differ slightly depending on application conditions and substrate. Please contact technical support to obtain a current COA test report.
Frequently AskedFAQ
ApplicationProcess
Surface preparation
Substrate must be thoroughly cleaned of oil and rust. Blast steel to Sa2.5. Prepare the surface per the product requirements. Ambient 5-40°C relative humidity<85%。
Primer / pre-treatment
Select a compatible primer or pretreatment according to the substrate and coating system. Mix strictly in the specified ratio and control the film thickness. Proceed to the next step after the primer dries.
Main-coat application
Apply the main coat per the process requirements. Strictly control parameters such as film thickness and temperature/humidity. Ensure a uniform coating free of sagging and pinholes.
Curing process
Oven-cure per the product requirements, or air-dry at room temperature. Keep the oven temperature uniform and ramp it up gradually. For room-temperature-cure grades, ensure ventilation and humidity control.
Inspection & acceptance
Test all parameters including film thickness, adhesion and gloss. Once everything passes, issue the test report and quality certificate, then pack and ship in a clean room.
ApplicationsCases
Architectural glass curtain wall silicone sealing
Weather-resistant waterproof sealing with silicone sealant for super high-rise building glass curtain walls
Aluminum window and door sealant
Aluminium window/door silicone sealant waterproof installation
Stone curtain-wall joint sealing
Stone curtain wall silicone sealant joint weatherproof sealing
Sunroom glass sealing
Waterproof sealing with silicone sealant for sunroom glass roofs
Stainless-steel railing sealing
Balcony stainless steel railing silicone sealant fixed sealing
Bathroom anti-mold sealant
Bathroom washbasin and bathtub silicone anti-mold sealant
Kitchen countertop sealant
Kitchen stone countertop silicone sealant waterproof and anti-mold
Aquarium bonding and sealing
Large fish tank glass silicone sealant bonding and sealing
Container sealant
Container door seal silicone sealant waterproof sealing
Cold-storage panel joint sealing
Cold-storage insulation panel joint silicone sealant low-temp sealing
Ventilation duct sealing
Silicone sealant sealing for air conditioning ventilation ducts
Solar panel frame sealing
Solar PV aluminium frame silicone sealant waterproofing
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Learn more→Neutral silicone sealant·Factory direct supply
Kexin neutral-cure silicone sealant supplied direct from the manufacturer. Free sample testing, on-site technical engineer guidance, ISO-certified quality assurance.
Related articles & news
Further reading: technical articles and industry news from Kexin New Materials